Tire shoe



M.- o. LOGAN Jul 31,1923.

TIRE snot Filed Jan. 23 1923 /NVNTOIQ MALCOLM D. LOGAN afl M PATENT OFFICE.

MALCOLM D. LOGAN, 0]? LOS ANGELES, CALIFORNIA.

rmn snoa Application Med January 23, 1088. Serial Io. 014,505.

Toallwhom it may 0mm:

Be it known that I, MALCOLM D. Loom, a citizen of the United States residing at Los Angeles, county of Los A eles, and State of California, have invent new and useful Im rovements in Tire Shoes, of which the ollowin is a specification.

This invention re ates to a pneumatic tire and articularly pertains to an overshoe there or.

It is the princi a1 object of the present invention to provi e an overshoe for the outer casings of pneumatic tires, which will completely enclose the tire and serve as an armored casing therefor, t the same time se curely gripping the tire and adhering thereto in a manner to prevent lateral or circumferential relative movement between the tire casing and the overshoe.

The present invention contem lates the use of a casing structure preferably formed of rubber and fabric, which structure is substantially crescent-shaped in section and is adapted to completely embrace the outer casing of a pneumatic tire, in order to cover this casing from one tire rim to the other, said casing being suitably reinforced and braced in a manner to be firmly held against the tire casin and at the same time provided with an inner portion adapted to cause the overshoe and casing to remain in fixed relation to each other, allowing the inner portion of the overshoe to conform to irreguarities and cavities in the contour of the tire casing, the tread portion of said overshoe being longitudinally reinforced with fabric stitching to prevent wear and slip or skidding. The invention is illustrated by way of example in the accompanying drawings, in whic The figure is a fragmentary view in perspective showing a portion of the overshoe in side elevation and a transverse section of the tire with the overshoe applied.

Referring more particularl to the draw ings, 10 in icates a wheel felX u on which is mounted a tire rim 11. s ere indicated, this rim is of the clincher 1; pc and is adapted to receive clincher bea s 12 of a pneumatic tire casing 13. The casing encloses a tire tube 14. t will be understood that the tire may be of any preferred design and that the present invention is more particularly concerned with a protective outer casing or overshoe 15. In section the overshoe and the tire casing are substantially the same formation, thus making it possible to build u a worn tire casing so that it will have t e appearance of a new tire. The sides of the overshoe extend down in close proximity to the tire rim 14 and are there reinforced b tension cables 16. These cables may be ormed of a plurality of strands of wire if desired or may be metal rods which extend circumferentially of the tire casing. The reinforcin held in the overshoe by fabric strips 17 the ends of which are brou ht down and are wrapped around the cab es, while the body portion of these strips extend coinpletel around and within the overshoe and are vu canized thereto so that the opposite edges of the fabric are secured to the cables at the opposite sides of the tire, thus placing the tension of the cable directly u on the fabric. A layer of rubber as in icated at 18 is placed over the fabric strips 17 and may be suitably cured so as to have the desired exterior appearance and at the same time to possess suilicient wearing qualities to serve the pur ose of an outer tire tread. In order to rein orce the tire tread, fabric stitching 19 is made circumferentially of the overshoe and the threads thereof are intended to pass down therethrough said tread. By this arrangement the ends of the stitching will at all times be exposed and will retard the wearing, slipping and skidding action produced as the tire rolls on its tread surface.

The inner surface of the overshoe is formed with a pliable section 20. This section of material is substantially crescentshaped having its greatest thickness at the tread. The material from which this section is made is especiall compounded rubber or rubber so treate as to permit it to ,readily conform and adhere to irregularities in the contour in the tread or to the nonskid surface intentionally cast thereon. Due to this the pressure on the tread of the overshoe caused b air premure or inflation will cause said ru her to be forced into the depressions in the tread of the tire, thus causing these two surfaces to interlock and adhere in a manner to prevent lateral and longitudinal sliptpage.

In operation 0 the present invention, it is necessary to first deflate and buckle the tire, thereafter slippin the overshoe therearound and with its rein orcing cable 16 in pro er relation to the o posite sides of the tire nm. The tire may t en be inflated and as the cables 16 are cable 16 will not permit stretching of the overshoe the outer surface of the tire casing will be completely covered and the inner surface of the overshoe drawn tightly therea inst. As the tire is used, the section 20 0 the overshoe will conform to the outer surface of the tire casing and produce the result previousl described.

It will thus e seen that by the use of the tire covering as here disclosed, a tire casing will be proiperly protected and will be given a neat an attractive appearance closely resembling that of a new or unused tire.

While I have shown the preferred form of my invention as now known to me, it will be understood that various changes in the construction, combination and arran ement of parts may be made by those skille in the art without de artin from the spirit of the invention as c aime Having thus described my invention, what I claim and desire to secure by Letters Patout is:

1. An overshoe for neumatic tire casings formed of alternate ayers of rubber and fabric, reinforcing cables around which the opposite sides of the fabric are secured and afterwards embedded and vulcanized within the rubber and fabric and a layer of soft rubber forming the inner face of the tire overshoeand adapted to readily conform and adhere to irregularities in the contour in the tire casing.

2. An overshoe for pneumatic tires formed of layers of rubber and fabric, adapted to conform to the outer circumference of a tire casing, and to extend over the sides thereof, non-yieldin reinforcing members extending along t e marginal edges of the shoe, thus formed, to hold it in osition, and an inner la er of soft plastic ru ber within said shoe, :3. apted to readily and permanently conform to the irre ularities in the contour of the casing, and t ereby to hold the shoe against circumferential or lateral movement.

3. An overshoe for pneumatic tire casings comprisin an outer body portion of rubber substantia 1y crescent-shaped, and extending over the tread and down over the sides of the casing to a point below the transverse sectional center of the casing, and stitched thereto, a fabric breaker strip embedded within the rubber directly below the tread portion of the casing, fabric layer strips, to which the body portion of the shoe is vulvanized, rigid reinforcing rin s or wires disposed along the opposite e ges of the shoe and along which the fabric strips are wrapped, said strips being thereafter rigid within the rubber of the casing, the tread stitching passin through the breaker stri and into the fa ric strips of the shoe, sai stitch occurin at intervals throughout the len th of the s 0e and arranged across the trea portion thereof, and a crescent-shaped la er of plastic rubber within the shoe and a apted to permanently conform to the contour and irregularities of the casing over which the shoe is mounted.

4. An overshoe for neumatic tire casings formed of alternate ayers of rubber and fabric, reinforcing cables around which the opposite ends of the fabric are secured, and afterwards embedded and vulcanized within the rubber; a layer of soft rubber forming the inner face of the overshoe, same being adapted to conform with the irre ularities of the tire when the tire is inflated ut permittin removal of the overshoe when the tire is de ated.

5. An overshoe for pneumatic tire casings, the same having an inner face of pliable ma terial which is adapted to conform with the irregularities of the tire and prevent movement between the overshoe and the tire when the tire is inflated, but allowing removal of the shoe when the tire is deflated.

MALCOLM D. LOGAN. 

